Antinociceptive activity and chemical composition of constituents from Caragana microphylla seeds.

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Huo Y, Guo C, Zhang QY, Chen WS, Zheng HC, Rahman K, Qin LP

Antinociceptive activity and chemical composition of constituents from Caragana microphylla seeds.

Phytomedicine. 2007 Feb;14(2-3):143-6. Epub 2006 May 16.

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16707255 [ View in PubMed
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Abstract

This investigation was undertaken to ascertain the antinociceptive activity of Caragana microphylla Lam. seeds and isolate and characterize the constituents. Antinociceptive activity was screened using acetic acid-induced abdominal constriction in ICR mice. The 75% ethanol extract and some fractions showed analgesic activity, but the antinociceptive activity of chloroform fraction was the strongest and was more productive than other fractions. Seven compounds were isolated from it and identified as: (1) machaeric acid, (2) beta-sitosterol, (3) stigmasterol, (4) pratol, (5) dehydrocavidine, (6) formononetin and (7) sucrose. Caragana microphylla Lam. seeds showed analgesic activity, with the chloroform fraction showing the strongest analgesic activity among the fractions.

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